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Haute Ecole Arc Conservation-Restauration

Oberflächenschutz von Kerisklingen : Eine vergelichende Untersuchung von modernen und traditionellen Beschichtigung

Meier, Janine

Mémoire de master : Haute Ecole Arc Conservation-Restauration, 2020.

This project compares different coatings for Keris blades, in the framework of the collaboration with the Museum der Kulturen Basel (MKB). The Keris blade collection of the MKB shows a wide variety of coatings, which are unique in that they are used for corrosion protection, but also for aesthetical and spiritual reasons. The objects, that arrived in different moments to the museum, have hardly...

Università della Svizzera italiana

Perception-aware computational fabrication : increasing the apparent gamut of digital fabrication

Piovarči, Michal ; Didyk, Piotr (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2020 ; 2020INFO015.

Haptic and visual feedback are important for assessing objects' quality and affordance. One of the benefits of additive manufacturing is that it enables the creation of objects with personalized tactile and visual properties. This personalization is realized by the ability to deposit functionally graded materials at microscopic resolution. However, faithfully reproducing real-world objects on a...

Università della Svizzera italiana

Fabrication-in-the-loop co-optimization of surfaces and styli for drawing haptics

Piovarči, Michal ; Kaufman, Danny M. ; Levin, David I. W. ; Didyk, Piotr

In: ACM transactions on graphics, 2020, vol. 39, no. 4, p. 16 p

Digital drawing tools are now standard in art and design workflows. These tools offer comfort, portability, and precision as well as native integration with digital-art workflows, software, and tools. At the same time, artists continue to work with long-standing, traditional drawing tools. One feature of traditional tools, well-appreciated by many artists and lacking in digital tools, is the...

Università della Svizzera italiana

Towards spatially varying gloss reproduction for 3D printing

Piovarči, Michal ; Foshey, Michael ; Babaei, Vahid ; Rusinkiewicz, Szymon ; Matusik, Wojciech ; Didyk, Piotr

In: ACM transactions on graphics, 2020, vol. 39, no. 6, p. 13 p

3D printing technology is a powerful tool for manufacturing complex shapes with high-quality textures. Gloss, next to color and shape, is one of the most salient visual aspects of an object. Unfortunately, printing a wide range of spatially-varying gloss properties using state-of-the-art 3D printers is challenging as it relies on geometrical modifications to achieve the desired appearance. A...

Università della Svizzera italiana

Hardware accelerated 3D nesh painting

Schärfig, Randolf ; Hormann, Kai

In: VMV 2010 : Vision, modeling & visualization, 2010, p. 211–218

In this paper we present a new algorithm for interactively painting onto 3D meshes that exploits recent advances of GPU technology. As the user moves a brush over the 3D mesh, its paint pattern is projected onto the 3D geometry at the current viewing angle and copied to the corresponding region in the object’s texture atlas. Both operations are realized on the GPU, with the advantage that all...

Università della Svizzera italiana

Polynomial reproduction for univariate subdivision schemes of any arity

Conti, Costanza ; Hormann, Kai

In this paper we study the ability of convergent subdivision schemes to reproduce polynomials in the sense that for initial data, which is sampled from some polynomial function, the scheme yields the same polynomial in the limit. This property is desirable because the reproduction of polynomials up to some degree d implies that a scheme has approximation order d + 1. We first show that any...